SEPARATION AND DETERMINATION OF TRACE INORGANIC GERMANIUM IN BETA-CARBOXYETHYLGERMANIUM SESQUIOXIDE BY FILTRATION CHROMATOGRAPHY AND HYDRIDE GENERATION GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

摘要

A method has been proposed for the determination of trace (ng) inorganic germanium in beta-carboxyethylgermanium sesquioxide (Ge-132) using hydride generation-graphite furnace AAS taking the advantage that Ge-132 was in the form that did not generate volatile hydride upon reduction. The analytical results obtained for Ge were checked by that obtained after separation from Ge-132 using filtration chromatography on a cation exchange column. The method was applied to the analysis of Ge-132 oral nutrition liquor; less than mu g ml(-1) of inorganic Ge in Ge-132 can be determined. [References: 18]